Calculate items bounding rect without hidden items.

--HG--
branch : develop

src/libs/vwidgets/vmaingraphicsscene.cpp

@@ -88,6 +88,21 @@ QPointF VMainGraphicsScene::getScenePos() const
     return scenePos;
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+QRectF VMainGraphicsScene::VisibleItemsBoundingRect() const
+{
+    QRectF rect;
+    foreach(QGraphicsItem *item, items())
+    {
+        if(not item->isVisible())
+        {
+            continue;
+        }
+        rect = rect.united(item->sceneBoundingRect());
+    }
+    return rect;
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 /**
  * @brief transform return view transformation.

src/libs/vwidgets/vmaingraphicsscene.h

@@ -49,6 +49,8 @@ public:
     void          setTransform(const QTransform &transform);
     void          SetDisableTools(bool enabled, const QString &namePP);
     QPointF       getScenePos() const;
+
+    QRectF        VisibleItemsBoundingRect() const;
 public slots:
     void          ChoosedItem(quint32 id, const SceneObject &type);
     void          SetFactor(qreal factor);

src/libs/vwidgets/vmaingraphicsview.cpp

@@ -33,6 +33,7 @@
 #include <QApplication>
 #include <QScrollBar>
 #include "vsimplepoint.h"
+#include "vmaingraphicsscene.h"
 
 #include <QGraphicsItem>
 #include <QMouseEvent>
@@ -263,15 +264,16 @@ void VMainGraphicsView::ZoomOriginal()
 //---------------------------------------------------------------------------------------------------------------------
 void VMainGraphicsView::ZoomFitBest()
 {
-    QRectF rect = this->scene()->itemsBoundingRect();
-
+    VMainGraphicsScene *currentScene = qobject_cast<VMainGraphicsScene *>(scene());
+    SCASSERT(currentScene);
+    const QRectF rect = currentScene->VisibleItemsBoundingRect();
     if (rect.isEmpty())
     {
         return;
     }
 
     this->fitInView(rect, Qt::KeepAspectRatio);
-    VMainGraphicsView::NewSceneRect(this->scene(), this);
+    VMainGraphicsView::NewSceneRect(scene(), this);
     emit NewFactor(this->transform().m11());
 }
 
@@ -362,7 +364,9 @@ void VMainGraphicsView::NewSceneRect(QGraphicsScene *sc, QGraphicsView *view)
     const QRectF viewRect = QRectF( a, b );
 
     //Calculate scene rect
-    const QRectF itemsRect = sc->itemsBoundingRect();
+    VMainGraphicsScene *currentScene = qobject_cast<VMainGraphicsScene *>(sc);
+    SCASSERT(currentScene);
+    const QRectF itemsRect = currentScene->VisibleItemsBoundingRect();
 
     //Unite two rects
     const QRectF newRect = itemsRect.united(viewRect);